Home / 856,803.36-1,285,473.60-515,619.03

Finding the Fourth Proportional to 856,803.36, 1,285,473.60 and 515,619.03

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Solution

The fourth proportional to 856,803.36, 1,285,473.60 and 515,619.03 is: 773,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,803.36 : 1,285,473.60 = 515,619.03 : x
  2. Step 2: Convert to fraction form
    856,803.36/1,285,473.60 = 515,619.03/x
  3. Step 3: Cross multiply
    856,803.36x = 1,285,473.60 × 515,619.03
  4. Step 4: Simplify right side
    856,803.36x = 662,814,650,722.61
  5. Step 5: Solve for x
    x = 662,814,650,722.61/856,803.36
  6. Step 6: Final answer
    x = 773,590.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.